LKBEN11509: Which ports are used by Samba or SMB?


You need to open ports on your firewall for Samba or SMB network communication.


There is a firewall between your clients and your servers


The following ports are used for smb communication and need to be open:

  • TCP 445
  • TCP and UDP 137
  • TCP 139
  • UDP 138

After opening these ports you should be able to communication with your samba or windows servers.

Have fun.


The information provided in this document is intended for your information only. Lubby makes no claims to the validity of this information. Use of this information is at own risk!

About the Author

Author: Wim Peeters - Keskon GmbH & Co. KG

Wim Peeters is electronics engineer with an additional master in IT and over 30 years of experience, including time spent in support, development, consulting, training and database administration. Wim has worked with SQL Server since version 6.5. He has developed in C/C++, Java and C# on Windows and Linux. He writes knowledge base articles to solve IT problems and publishes them on the Lubby Knowledge Platform.

Latest update: 18/06/2021 | Comment: